what i think
i think lucy is still living with the foster family, because the the family wants to do everything to make her happy, so they let her visit Sam from time to time.
the lawyer got divorced with her husband.
the questions i would ask is, what the meaning off the colors were in some of the scenes throughout the movie?, why did the husband leave the lawyer?
at the beginning of the film we could see Sam organizing packets of sugar in their colour and placing cups in the same direction. the film is hinting that the main character is disabled because of the way he was behaving.